var createError = require('http-errors');
var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');

var indexRouter = require('./routes/index');
var usersRouter = require('./routes/users');
var commentRouter = require('./routes/comment');
var vueRouter = require("./routes/vue")
var prjRouter = require("./routes/prj")

var app = express();
var session = require("express-session")
var cors = require("cors")
var connect = require("./utils/connect")

app.use(cors())
// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'ejs');

app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));

app.use(session({
  name:"AppTest",
  cookie:{mxAge:1000*60*60},
  secret:"test",
  resave:false,
  saveUninitialized:true
}))

//设置中间键
app.use('/', indexRouter);
app.use('/users', usersRouter);
app.use('/comment',commentRouter);
app.use('/vue',vueRouter)
app.use("/prj",prjRouter)

// catch 404 and forward to error handler
app.use(function(req, res, next) {
  next(createError(404));
});

// error handler
app.use(function(err, req, res, next) {
  // set locals, only providing error in development
  res.locals.message = err.message;
  res.locals.error = req.app.get('env') === 'development' ? err : {};

  // render the error page
  res.status(err.status || 500);
  res.render('error'); // ("../views/error.ejs")
});

module.exports = app;

// app.set  全局变量
// app.use 中间键 